Rotary harrow.



.J. G. WILLIAMS.

ROTARY HARROW.

APPLICATION FILED AUG-7, 1911 Patented Apr. 9,1918.

2 SHEETS-SHEET 2- aumwt oz zZZza/mS willmcmc I w I "trivia a ROTARY HARROW.

Application filed August 7, 1917.

To all whom it may concern:

Be it known that I, Josnrn G. VVILLIAMs, a citizen of the United States, residing at Sprague, in the county of Lincoln, State of l/Vashington, have invented a new and useful Rotary Harrow; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved rotary harrow, and one of the objects of the invention is to provide a simple, efficient and practical device of this kind comprising various improved features of construction.

Another object of the invention is to provide means for universally joining a multiple of frames, each carrying a rotary harrow, whereby said harrows may accommodate themselves to the irregularities of the ground when traversing thereover.

One of the features of the invention is the provision of an improved casting having means for the reception of the beams of one of said frames, and in a bearing of which casting an upwardly extending stub shaft of the harrow is journaled.

Another feature of the invention is the provision of the casting for supporting the arms of the rotary harrow.

In practical fields the details of construe tion may necessitate alterations falling with in the scope of what is claimed.

The invention comprises further features and combination of parts as hereinafter set forth shown in the drawings and claimed.

In the drawings:

Figure 1 is a plan view of the improved harrow constructed in accordance with the invention.

Fig. 2 is a rear elevation of the same.

Fig. 3 is a sectional view on line 33 of Fig. 1.

Fig. 4, is a detail perspective view of the casting of the central frame of the harrow.

Fig. 5 is a detail view in elevation of the casting for supporting the arms of one of the rotary harrows.

Fig. 6 is a bottom plan view of Fig. 5.

Fig. 7 is a detail perspective View of the casting shown in Figs. 5 and 6.

Referring more especially to the drawings 1 designates an elongated beam, to which a pair of draft equalizers 2 are connected by means of the straps or plates 3. A multiple of harrow frames 4, 5 and 6 is provided.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Serial No. 184,893.

Each end frame comprises a casting 7 having right angle extending arms 3 and 9 provided with channels 10, in which the beams 11 and 12 are secured by the bolts or the like 13. The central frame 5 comprises a casting 1a provided with a forwardly extending arm 15 and the laterally extending arms 16 and 17. Said arms 15, 16 and 17 have channels 18, 19 and 20, in which the beams 21, 22 and 23 are secured by the belts or the like 2 1. It is to be observed that the arms 1.6 and 17 extend towardthe channeled arms 9 of the castings 7 of the end frames, whereby the beams 22 and 23 Will extend toward the beams, 12 respectively. The adjacent ends of the beams 12 and. the beams/22 and 23 are universally connected by the interlinked or interengaging eyes 25, and by means of such connections, the multiple of harrows carried by the multiple of frames 4, 5 and 6 respectively, may accommodate themselves to the unevennesses of the surface of the ground. Each rotary harrow comprises a casting 26, which is circular or disk shaped, and is provided with radial recesses or grooves 27 on its under surface, and intermediate said grooves are enlargements 28. Secured in the grooves 27 by means of the bolts or the like 29 are the radial harrow arms 30, which are provided with downwardly extending harrow teeth 31. Rising upwardly from each casting 26 is a hub 32 having a boss 33, and rising axially upwardly from the boss is a stub shaft 34:. The bosses 33 of the hubs 32 of said castings 26 of the harrows engage recesses 35 of the castings 7 and 14 respectively, while the stub shafts 34 pass upwardly through bearings of said castings 7 and 14 respectively. Suitable collars 36 are fitted upon the stub shafts 34 and are secured by the cotter pin 37, thereby preventing downward movement of the harrows from their frames. By virtue of the radial recesses or grooves 27 and the intermediate enlargements 28, the arms of the harrows are held securely in place. The forward ends of the beams 11 and 21 have upper and lower plates or straps 38 secured thereto by the bolts 39. The beam 1 engages between said upper and lower straps 38 of the beams 11 and 21 respectively. This beam 1 adjacent the straps 38 is provided with apertures or perforations 10 arranged in series, and any of the corresponding apertures of said series respectively may receive the bolts 4:1, for holding or connecting thewardly and laterally,

the beam 22 and 23 may incline from one beam 12 to the opposite beam 12.

The invention having been set forth what is claimed as new and useful is 1. In a multiple frame harrow, a forwardly arranged transverse bar having draft means, a plurality of frames having their forward ends adjustably connected to said transverse bar, said plurality of frames having laterally extending arms, universal connections between said laterally extending arms of said frames, and a plurality of rotary harrows provided with stub shafts journaled in said frames respectively.

In a harrow, a multiple of side by side frames having universal connections with each other, one of said frames comprising a three-arm casting, said arms having chan- Gopies of this patent may be obtained for in a bearing of said casting, and draft means connected to the forward ends of said frames.

In a barrow, a multiple of frames, a central frame and two end frames, the central frame having laterally extending arms, and a forwardly extending arm, each end frame comprising a forwardly extending arm and a laterally extending arm having a universal connection with the end of an adjacent laterally extending arm of the central frame, and harrows rotatably mounted in said frames respectively, a transverse bar connecting the forwardly extending arms of said frames, and draft means carried by the bar.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH GENTRY WILLIAMS.

Witnesses: V I V J. HALL, P. N, SMALLEY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

